Two-reel sewing-machine.



D. FLANAGAN.

TWO REEL SEWING MACHINE.

APPLICATION FILED 0130.31, I914.

Patented 0%(17, 1916.

2 SHE S SHEET I.

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DENIS FLANAGAN', or ACCRINGTON, ENGLAND Y Application filed December31,1914; Serial Nb. s79,s9o.-

To all whom it may concern: p

Be it known that I, DENIS FLANAGAN, subject of the King of Great Britain a'ndIre land, and resident of Accrington, in the county of Lancaster, England, have invented certain new and useful Improvements in Two-Reel Sewing-Machines, of which the following is a specification.

My invention relates to improvements in two-reel sewing machines, the object being to provide means for passing the needle thread around the case containing the lower reel; said means being also designed to allow of the shortest thread loop possible being made consistent with the size of the case containing the reel.

Prior to the date of my invention it has been proposed to employ in two-reel sewing machines a hook lever for the needle thread having its pivoted point near the centerof its length on a revolving disk or arm, the

forward end of the lever carrying a hook for engaging the needle thread whilethe rear end is provided with a pin passing into a slot formed in a fixed bracket carried by the bed plate of the machine. The afore said lever is pivoted at the outer end of the machine and operates transversely of it.

This invention consists in the novel construction and combination of the parts hereinafter fully described and claimed.

My invention will be fully described with reference to the accompanying drawing in which- Figure 1 is a front elevation, partly in section, ofso much of a two-reel sewing machine as is necessary to show the application of my invention thereto, Fig, 2 elevation of same, partly in section, from the left hand end, Fig. 3 plan, partly in section, Fig. 4 end elevation to an enlarged scale of the improved arrangement of'hook showing the reel case in broken lines, Fig. 5 broken line front elevation of the reel case showing in fulllines some of the main features of my invention adjacent thereto and Fig. Gplan. of the hook and adjacent part.

Referring to the drawings the reel case 0 containing the lower reel is supported in its holder 6 beneath the machine bed plate 0 with its axis parallel to the edges of said plate and with its pointed end d facing outward from the open end of the machine arm 6. The case a and its holder b are of substantially ordinary construction. .To pass the needle thread. loop 7 around the reel case TWO-REEL SEWING-MACHINE.

Specification of-Letters Patent.

Patented Oct. 17,191

I arrange beneath the bed plate 0 atone side of the machlne a lever or arm 9, the rear.

end of which is coupled to a crank it which may be driven in any suitable way as by.

bevel gear 71 from the usual operating shaft j of the machine. The forward end of this lever is provided with an improved hook is for engaging with the needle thread 7. This hook is pointed at its forward end m toenable it to enter the needle thread loop, the

shape being substantially as shown in Figs. 5 and 6. The shank of the hook. projects end of the'shank and is arranged parallel to the lever 9. At the rear of the point it is prolaterally from the lever g, and its free end v j .70

vided with a T-shaped slot at runningtransversely of the hook to form the eye for the thread. The leg of the slot opens out at the lower side of the hook, as will be seen from Fig. 5. Intermediate ofthe two ends, the v lever g is pivotally connected to a block 0" slidable in a guideway p formed'on or 'attached to the machine bed plate. The rotation of the crank it not only'rocks the lever about the pivotal point g of the slidable block 0 but likewise moves the latter backward and forward in its guidewayp with the result that the hooked end ofthe lever vertical, or substantially so. Thus the reel case axis being substantially parallel with that of the Ina-j or axis of the ellipse it is only necessary to provide a needle loop about i long enough ,to pass around the transverse section of the reel case. Such loop is formed during the up, forward and downward movements of thehookedj end of the lever and is afterward passed around-the body of the reel case, as will be well understood, during the rearward motion of the hook,'the'latter being so formed as to carry the loop backward to a definite point at which the thread is disengaged to allow of its being drawn up by the take-up mechanism of the machine to tighten the stitch.-

In conjunction with a hooked lever arranged as aforesaid I employ means for disengaging the needle thread f from the hook is. These means consist of two projections r curved on their'front faces as seen in Figs; land 5 and with sufficient s ace 8 between.

them as in Figs. 2 and 6to al' ow of the assage of thehook is freely between them he 2 against the rear end of the top portion of the eye.

This formation of the T-shaped eye prevents the thread from slipping out of the eye while the eye is being moved forwardly as Well as while it is being moved backwardly. When the hook passes the forward end of the reel case and commences to recedelthe thread is drawn to the forward end of the top portion of the eye as in Fig. 5, where it is retained during part of the upward motion of the hook behind the reel case. The hook then takes the thread between the curved projections 1" the latter pushingthe thread back slightly to a position opposite the open part of the eye. By

a further upward movement of the hook and the slight momentary retardation of the thread due to its contact with the projections'r, the hookis disengaged from the thread which is then drawn up through the space at behind the'projeetions r by the usual take-up mechanism and so tightens the stitch. The gear 2' j is a two-to-one gear and causes hook is to complete its movement twice for each descent of the needle so that the hooklc engages with the needle thread on each alternate movement only as will be understood.

Insteadof a slidable block 0, any other approved means for pivotally supporting the lever 9 may be provided which will permit the lever to move longitudinally so that the hook may move in an elliptical path.

What I claim-is:

1. The combination, with a reel case, and a reel mounted therein; of a lever arranged parallel to the aXis of the reel and to the rear of the reel case, means for pivotally supporting the lever and permitting it to slide longitudinally, and a hook having a shank which projects laterally from the front end portion of the lever and which terminates in a forwardly projecting end portion having a pointed'end and a T-shaped slot or eye for the thread provided with an opening on its lower side, the horizontal upper portion of the eye normally operating to prevent the disengagement of the thread while'the lever is moving longitudinally in each direction.

2. The combination, with a reel case, and a reel mounted therein; of a lever arranged parallel to the axis of the reel and to the rear of the reel case, means for pivotally supporting the lever and permitting it to slide longitudinally, a hook having a shank whichprojects laterally from the front end portion of the lever and which terminates in a forwardly projecting end portion hav ing a pointed end and a T-shaped slot or eye for the thread provided with an opening on its lower side, the horizontal upper portion of the eye normally operating to prevent the disengagement of the thread while the lever is moving longitudinally in each direction, and two stationary curved projections arranged at the rear of the reel case and forming a passage for the front end portion ofthe hook'and operating to disengage the thread from its said eye.

3. The combination, with a reel case, a reel mounted therein, and a stationary guide arranged parallel to the axis of the reel; of a block slidable longitudinally in the said guide, a lever having its middle part pivoted to the said block and arranged to one side of the reel case, a hook having a shank which projects laterally from the front end portion of lever toward the reel case and which terminates in a forwardly projecting end portion arranged parallel to the axis of the reel case and having a pointed end and a T-shaped slot or eye for the thread provided with an opening on its lower side, and a revoluble crank operatively connected to the rear end portion of the lever.

In testimony whereof I have hereunto set my hand in the presence of two witnesses.

DENIS FLANAGAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). G. 

